Here are Sonic kids. I'm going to do their description from left to right:

Name: MoonDaughter of: Cream and TailsAge: 12Likes: Run, sports, TomDoesn't like: Tom ignore herShe is a little fox with 2 tails (like her father) and had a crush on Tom (and follows him every part he goes, like Amy) Her brother Mike, is always take care of her, and she likes a lot her brother.

Name: TomSon of: Sonic and AmyAge: 15Likes: Run, fresh air, being in a calm place, Moon (a little bit)Doesn't like: mean people, that someone hurt Moon or any other of his friends, Moon acting like a stupid.He is like his father, always running from one place to another, but he only want to stay in a calm place to stay with his friends, but he always has to run because Moon is always chasing him!

Name: CrystalDaughter of: Knuckles and RougeAge: 16Likes: fight with bad guys, adventures, seeing her brother happy.Doesn't like: mean people, someone hurting her brotherShe is a pink echidna who is always looking for adventure (always seeing if her brother doesn't get into trouble), she has a short temper like her father, but she likes jewels like her mother, her name was chosen by her mother.

Name: MikeSon of: Cream and TailsAge: 18Likes: seeing her sister happy, MiaDoesn't like: stupid people, his friends doesn't acting for his age, his parents doesn't understand him, seeing her sister sadHe is the older in the group of the new group of sonic. He is always sad because she lost a very special friend when he was 11. Because they told him that they died. So he is always telling her sister to be careful with Tom because one day he could hurt her.